GROUND ZERO GZNT 28SQ
Specifications
Verified with KLIPPEL
®
GROUND ZERO is using the worldwide accepted KLIPPEL® R&D Analyzer KA3
measurement system for speaker development during the German in-house
development as well as for QC reporting for most production lines at the factory. The
results of LPM and LSI measurements are the basis for evaluating and verifying further
development enabling to offer perfectly working products in any practical application.
Continuous and advanced trainings for development employees ensure the highest
possible qualification.
KLIPPEL® is a registered trademark of KLIPPEL GmbH
Specifications
Safety instructions: Keep all parts of the content and the packaging away from children and pets to avoid
accidents and the risk of suffocation. Permanently extreme levels of over 85 dB can lead to irreparable
damage to the hearing. Music systems with high amplifier output power can reach levels of 130 dB or
more. Extreme levels can also hinder the perception of important traffic noises and distract from what is
happening on the road. Ground Zero GmbH and its sales partners expressly assume no responsibility for
hearing damage, physical damage or any damage to property or consequential damage resulting from
improper or careless use or improper installation of its products. In particular, any claims are forfeited
through the use under competitive conditions.
Manufacturer's declaration: Hereby, Ground Zero GmbH declares that this product conforms to the rules
of the following EU directives (including all applicable changes): 2011/65 / EU RoHS2 and 2001/95 /
EC directive on general product safety. The full text of the EU declaration of conformity is available at
. Loudspeakers contain magnetized metals and some valuable raw materials
and must not be disposed of with normal household waste. Please leave defective or no longer required
components to a local recycling facility at the end of their practical use.
GROUND ZERO are engineered in Germany
GROUND ZERO – International Sponsor
Ground Zero GmbH
Erlenweg 25, 85658 Egmating, Germany
Tel. +49 (0)8095/873-830
www.ground-zero-audio.com
Model
GZNT 28SQ
Housing
Aluminum
Diameter
28 mm / 1.1”
Impedance
4 ohms
Resonance frequency
1350 Hz
Frequency response
2000 Hz – 25 kHz
Power handling
90 Watts RMS / 140 Watts max
(3000 Hz HPF @ 12dB/oct)
Efficiency
91 dB
